Case excavator seal kits

Browse aftermarket replacement hydraulic seal kits for Case excavators, including boom, arm/stick, bucket and other cylinder applications. Fujis Seal organizes this collection to help identify the correct kit by Case machine model, OEM/reference part number, cylinder position, serial number and available rod/bore dimensions.

Case Excavator Hydraulic Cylinder Seal Kits

Excavator seal kits are application-specific. Machines in the same CX or earlier Case series can use different cylinders depending on serial range and configuration, so the machine model alone is not always enough.

Depending on the application, a kit may include rod seals, piston seals, wipers, O-rings, backup rings, wear rings and guide elements. Check the individual product page for exact kit contents and materials.

How to Identify the Correct Case Excavator Seal Kit

• Machine model: confirm the complete Case model designation.
• Serial number: important when a model family uses more than one cylinder version.
• Cylinder position: boom, arm/stick, bucket or other hydraulic function.
• OEM/reference number: use the complete Case or catalog reference when available.
• Rod and bore dimensions: use as a secondary fitment check.
• Photos/markings: cylinder tags and old seal markings can help with unlisted applications.

Part-number matching is usually more reliable than dimensions alone because similar cylinder sizes can use different seal profiles.

Fitment Support from Fujis Seal

For help, contact Fujis Seal with the model, serial number, cylinder position, reference number, photos and measurements. You can also read our excavator seal kit identification guide.

Case Excavator Seal Kit FAQs

Are boom, arm and bucket kits interchangeable?

No. Each cylinder can use different dimensions and sealing arrangements.

Can I identify a kit without a part number?

Often, yes, using the machine model, serial number, cylinder position, photos and rod/bore dimensions.

Are these genuine Case parts?

Unless a listing expressly states otherwise, products are aftermarket replacement seal kits supplied by Fujis Seal. Case names and references are used for compatibility and product identification only.

Case is a trademark of its respective owner and its use does not imply endorsement or affiliation.